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(No Model.)

H. D; KLOTS. MOUNT FOR SPINNING SPINDLES No. 498,980. Patented June 6, 1893.

IN VE N 7'01? WITNESSES.

UNITED STATES PATENT OFFICE.

' HENRY 1). KLOTS, OF NEW YORK, ivfY.

. MOUNT FQRSPINNING-SPINDL ES.

SPECIFICATION forming part of Letters Patent No. 498,980, dated June 6, 1893.

Application filed January 14, 1893. Serial No. 458,819- (No model.)

To all whom it may concern.-

Be it known that I, HENRY D. KLOTS, a citizen of the United States, residing in the city, county, and State of New York, have invented a certain new and useful Improvement in Mounts for Spinning-Spindles, of which the following is a specification.

The general object of my invention is to provide for greatly reducing the diameter of the bearing portion of the blades of spinning spindles, and thereby correspondingly increasing their practicable speed, with a proportionate gain in economy. The bearing portion of the spindle-blade in common use is about three-eighths of an inch in diameter, and its limit of speed about twelve thousand turns a minute. If its diameter is greatly decreased for the purpose of allowing a-higher speed, the blade will be bent by the lateral stress to which it is subjected each time that the bobbin is dofied, and becomes permanently flexed, so that it will bind in its bear-" ing with the result of greatly increasing the work required to drive it and lessening its durability. This is due to the fact that in the prevailing form of spindle-mount, the spindle-blade is supported only at its bolster-bearing and its step-bearing, leaving the blade free to be bowed therebetween in yielding to the flexure above the bolster-bearing. Further the sleeve-whirl does not prevent this flexure, for the reason that it is fixed to the spindle-blade so close to the center of flexure, which is immediately above the bolster-bearing, as to join only partially in the flexure of the blade, and thus does not bear against the bearing-tube and support the blade until after the blade is flexed. The immediate-aim of my invention is therefore to so improve the mount of the spindle that the required reduction in diameter of the blade can be made without increasing its liability to flexure in dofling. I attain this end by providing one normally inert bearing a considerable distance above, and, preferably, another below and equally distant therewith from the upper end of the bolster-bearing, to be normally just out of contact with a part of the spindle, as the sleeve-whirl, but to bear against the same and support the spindle-blade as soon as it is subjected to lateral stress, as in dofiing the bobbin.

In order that my invention may be fully ascertained, I shall first describe in detail the mode in which I practice theinvention and then point out its distinctive features in the claim.

Reference is to be had to the accompanying drawings, forming part of this specification, in which- Figure 1 represents a sectional elevation of a spinning-spindle mount embodying my invention. Fig. 2 is sectional plan view of the same on the line 2 2 Fig, 1. Fig. 3 is a sectional plan view on the line 3 3, Fig. 1.

Like letters of reference designate corresponding parts in the several figures.

A designates the spindle-rail and B a selfadjusting universal-center bolster and stepbearing tube mounted thereon, substantially as shown in Fig. 8 of and claimed in my Letters Patent No. 493,034, granted March 7, 1893, save that the bearing-sustaining springs 0, in

this instance, press against a collar D loosely surrounding the tube B. The method of sup porting the bearing tube, however, whether rigidly or/flexibly, does not concern my pres. ent invention. The diameter of the bearing portion E of the blade E of the spindle E herein shown is assumed to be reduced to onethird of that of the blade in common use, that is, to about one-eighth of an. inch, and the spindle .E is provided with a sleeve-whirl F,

surrounding the tube B with uniform closeness, but out of contact therewith. I arrange the correspondingly reduced bolster-bearing G, within the tube B, so that its upper end, immediately above which would be the center of flexure of the spindle-blade E will be a considerable distance below the upper end of the tube B, and, substantially so that said center will be equally distant from said upper end of the tube and the lower end of the sleevewhirl F. Then when, as in dofiing, lateral stress is put upon the upper end of the blade,

as to the left in Fig. 1, the upper end of the tube B, on the right, and the part of the tube B on the left opposite the lower end of the whirl Fgwill instantly and simultaneously bear against the corresponding parts of the sleeve-whirl and act as hearings to support the spindle-blade against flexure. With this construction of mounting, I havebeen enabled to use the spindle-blade of one-eighth inch diart lameter, and run the same continuously at the Iihitherto unattainable speed of twenty-three thousand turns a minute, and it has shown no trace of flexure in spite of constant dotting, whereas a spindle of the usual size, when run at the same speed, is bound in its bearing in a few minutes, and a spindle of the same re minced size, but with the common mountin became soon permanently flexed and unfit for use, for the reasons hereinbefore assumed.

Ill claim as my invention- The combination of the and rigidly combining the bolster and stephearin'gs, the spindle having close-contactmounting in said combined bearings, so that its center of flexure is a short distance tube containing HENRY 1); more.

Witnesses:

CLARENCE L. BURGER, Rosoon (3. "rooms, 

